Approximately 1.5 million Americans currently suffer from Parkinson’s disease and it’s estimated that 60,000 new cases are diagnosed each year. There has long been a debate as to what causes the condition which usually develops after the age of 65, though 15% of those diagnosed are under 50. Many researchers believe that a majority of cases may have developed from a patient’s exposure to pesticides or other environmental factors. Larry talks with LA Times staff writer Marla Cone, UCLA Epidemiologist Dr. Beate Ritz and Joan Samuelson of the Parkinson's Action Network about new findings linking Parkinson’s to pesticides.